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← Internet status in São Tomé & Príncipe · All countries · Events feed · See on the live map: before, during, after

Internet outage in São Tomé & Príncipe on 27 June 2026: CST

When (UTC)DurationSeverityPeak drop
27 Jun 2026 02:50-03:10 UTC20 min Degraded27%

Country signal around the event

Each point: share of the country's networks that answered a probe within 10 minutes. Data: IODA (Georgia Tech). Event selection, exact timing and provider breakdown: GeoCables. Red band: the event.

25% 50% 75% 100% 26.06 18:00 27.06 00:00 27.06 06:00 27.06 12:00

Providers during the event

ProviderShare of usersSignal drop
CST AS32819195.8% 45%Affected
Unitel STP AS32772513.2% 0%No change
Starlink AS145932.3% 1%No change

Submarine cables feeding São Tomé & Príncipe

Africa Coast to Europe (ACE) Ultramar GE

Incident history

Significant incidents on cables landing here, each with its own report.

All cable incidents →

How we know this

Both series come from IODA (Georgia Tech): BGP route visibility and active probing of networks inside the country. GeoCables does the rest: a drop of 20% or more below the usual level of the last 24 hours is a disruption, 50% or more an outage; the exact start and end are taken from the full-resolution series (10-minute steps), not from the moment our detector recorded the event. Provider figures are hourly samples from the same source; a provider counts as affected at a drop of 30% or more. Our own probes on land are a separate layer and are shown here only when they saw the event.

Confidence: Medium: the drop is visible in active probing; route visibility did not drop.

Data: Country series for this page (JSON) · Permanent link to this event: geocables.com/outages/st/2026-06-27 · Page generated 02.10.2026 19:30 UTC

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